Showing Results for science expanders : Page 7

In this cool experiment, learn about the forces of resistance in a liquid and race marbles in a cylinder to find out which fluids have a high viscosity.

This experiment will evaluate bacterial content on toothbrushes before and after different cleaning methods to determine which method of disinfecting is best.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

This simple experiment serves as an introduction to the greenhouse effect.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

Find out whether cast iron or regular teflon pans heat up faster and also retain their heat longer.

Find out whether freezing or refrigerating destroys more bacteria. This is essential to consuming safe and germ-free food.

Evaluate whether people can raise the temperature of their finger using the power of their thoughts.

Discover if temperature settings in a fridge make a drastic difference in terms of bacterial growth.

Construct calorimeter and determine the caloric value of a sample of foods by change in temperature for each of the foods.

In this experiment you will become familiar with the properties of dry ice while creating interesting effects like ice bubbles!

Try this simple activity with your child to guesstimate the age of a tree in your yard and nurture her developing math skills while you're at it!

Did you ever drink spoiled milk? Find out whether whole milk spoils at the same rate as 2% and skim milk.

This project explores whether music affects the growth and health of plants.

Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.

This project examines the affect of temperature on viscosity and surface tension of different liquids.

What is the coldest temperature possible? In this cool experiment, you'll calculate absolute zero by extrapolating data on the temperature and volume of gas.

Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.

Examine the presence of seeds in open fields. Collect seeds on socks by walking through open fields of grass or other growth. Germinate seeds on socks

From Canada's flag, to the Toronto Maple Leafs, to classic maple syrup cookies, the maple tree is very much a part of Canadian heritage.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Determine how salinity affects the circulation of warm and cold water. Note whether the warm water mixes or forms a layer with cold water.

This project examines the concentration of dissolved oxygen in water, with and without oil.

The objective of this experiment is to evaluate the effects of acid rain on plants.

Making candles from old candles is easy. Recycle old candle stubs to make a "new" candle, and teach your child about recycling at the same time!

Make your own marshmallows and mix up some very interesting third grade chemistry lessons while you're at it!

Test products which claim to reduce wrinkles, and determine which is the most effective. Test effectiveness over three weeks, using a sample of volunteers.

Determine whether the application of Febreeze will lower the bacterial count.

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

Learn about the microclimate of your backyard by tracking rainfall, temperature, and observed weather with hand drawn charts and graphs.